Crews are trying to close off a natural gas leak that forced the evacuation of several homes in Southwest Portland this afternoon.Portland Fire & Rescue received a call about a broken 4-inch line hissing on the 100 block of Southwest Kingston Avenue about 1:25 p.m., said A.J. Schaffer, a spokesman for the fire bureau.

Fire crews and Northwest Natural Gas Co. workers are currently at the scene trying to shut the line off and repair the leak, Schaffer said. Residents of about 15 homes on Kingston Avenue between Southwest Tichner Drive and Southwest Fairview Boulevard Residents of about 15 homes were evacuated.